Dynamite Friction 604-40110 Disc Brake Rotor - Front

Front Brake Rotor for Ram HD Trucks

The Dynamite Friction DFC GEOSPEC Coated Rotor, part number 604-40110, is a vented front disc brake rotor built for heavy-duty Ram applications. It is sized for large-diameter front brake systems and uses a coated finish to help resist corrosion on exposed rotor surfaces.

Key Features

• Part number 604-40110
• DFC GEOSPEC coated rotor for front axle use
• Vented rotor design for heat management
• Outside diameter: 360 mm
• Nominal thickness: 39 mm
• Discard thickness: 37.4 mm
• Height: 102 mm
• Inside diameter: 123 mm
• Bolt hole quantity: 8
• Bolt hole diameter: 16.7 mm

Product Details

The DFC GEOSPEC Coated Rotor line focuses on corrosion protection and consistent brake service for daily driving and towing use. This rotor is engineered for front brake replacement on Ram 2500, Ram 3500, and Ram 4000 models with the listed brake configurations. The vented construction supports heat dissipation during repeated stops, while the coated surface helps protect non-friction areas from rust buildup.

Compatible With Ram 2500 front applications from 2011-2025, Ram 3500 front applications from 2009-2018 and 2023-2025, and Ram 4000 front applications from 2011-2025. This part number 604-40110 is also listed for 2019-2022 Ram 3500 front configurations with SRW or DRW setups, including standard output transmission and high output HD transmission notes where specified.

Common Issues This Rotor Can Address

• Front brake rotor wear that has reached discard thickness
• Brake pulsation caused by rotor surface variation
• Corrosion on exposed rotor areas
• Reduced braking consistency from heat buildup in heavy-duty use
• Replacement needs on Ram 2500, Ram 3500, or Ram 4000 front brake systems

Installation Notes and Tips

Verify rotor dimensions, bolt pattern, and axle/brake configuration before installation. This rotor is for front position use only, and fitment varies by Ram 3500 configuration in 2019-2022, including SRW, DRW, standard output transmission, high output HD transmission, and rear axle notes listed in the fitment data. Clean the hub mounting surface before installing the new rotor to help reduce runout concerns.

Quality Assurance

Dynamite Friction’s DFC GEOSPEC Coated Rotor line is built around coated corrosion protection and OE-style fitment for service replacement. Part number 604-40110 is specified for direct front brake rotor applications on Ram HD trucks within the listed fitment range.